Apparatus for casting metallic wheels.



Patented July H, I899. C.-BUSH- APPARATUS FOR CASTING METALUC WHEELS.

(Application filed Apr. 19, 1899.)

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No. 628,446. Patented July u, I899. 6. us. APPARATUSFOR CASTING METALLICWHEELS.

(Application med Apr. is, 1899.)

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' UN TED STATES PATENT OF CE;

CLEMENT BUSH, or QUINCY, ILLINOIS.

APPARATUS FOR CASTING METALLICWHEELS.

SPECIFICATION forming part of Letters Patent No. 628,446; dated July 11,1899.

- Application filed April 19, 1899.

of the United States, residing at Quincy, in the county of Adams andState of Illinois, have invented certain new and useful Improvements inApparatus for Casting Metallic Wheels; and I do hereby declare thefollowing to be a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part of thisspecification, and to the letters of reference marked thereon; Thisinvention relates to vimprovements in apparatus for, casting metallicwheels of that type wherein the spokes of the wheel or article to becast are inserted in the mold in such manner as to be united at theirinner ends with the metal which forms the hub of the wheel, while attheir other ends they are confined by a rim of any approved pattern,usually, however, of metal. v The objects of the invention are to providan apparatus whereby the manufacture of such wheels may be simplified,the certainty and accuracy of the results increased, and the cost ofmanufacture reduced to a minimum. With such objects in View theinvention may be, said to embody a flask in which the cast-portion ofthe wheel is. given form, embodying or having combined with it a patternof peculiar construction for giving shape to the mold in which the castis made within the flask and for giving access to said mold for theintroduction of the spokes for uniting the hub and rim of the completedwheel.

Further than this the invention consists in certain novel details ofconstruction and coinbinations and arrangements of parts, all as will be110W described, and pointed out particularly in the appended claims.

Referring to the accompanying drawings, Figure 1 is a perspective viewof my apparatus prepared for the reception of the sand or loam in whichthe mold-cavity is formed. Fig. 2 is a similar View with thechill-retaining cylinder and some of the temporary spokes ormold-positioners removed and with the rim and core retaining armsor'spiders in position. Fig. 3 is a ver a cross se ti n of th Serial No.718,619. (No model.)

is a similar. view of one of the stubs for giving shape to the cavity inwhich the metal around the inner ends of the spokes is formed. Fig. 6 isa perspective view of a modified form of sectional chill with the twosections separated. Fig. 7 is a vertical cross-section of provide acasing, preferably cylindrical and lettered A in the accompanyingdrawings, which casing might be and will for convenience herein betermed a flask, within which the hub portion of the wheel isfcast andthrough the walls of which the spokes during the casting operation areadapted to project radially into engagement with the rim of the wheel.For the purpose of accomn1odating the spokes and permitting the removalof the wheel after the hub has been cast around the inner ends of thespokes the wall of the flask A has vertical slits a thereincorresponding in position to the positions of the spokes in thecompleted wheel, and the upper ends of these slits are widened out toform openings, through which parts, which I shall herein term chills,are adapted to project and through which in turn the inner ends of thespokes are inserted into the mold-cavity. These chills and the openingsfor their reception are'preferably staggered to approximate thestaggered arrangement of the spokes on the hub of the wheel, and in thedrawings it will be noted that this is shown in Fig. 2, where proximateopenings are in different horizontal planes. The chills, preferably madein interlocking halves B, are inserted through the openings at the upperends of the slits a in the flask A and project inwardly to a point wherethe ends of the cavities for the stubs on the hub of the wheelterminate, and at their inner ends they have openings approximately thesize of the spokes to be used in the wheel. These openings flareoutwardly apparatus illustrated in Fig. 1. Fig. 4 is a detailperspective viewof one of the chills of the preferred form, with its twohalves separated to show interlocking portions. Fig. 5

than at the inner ends. Thusthe spokes may presently explained. Thesections of the chills are held together by the walls of the openings inthe flask, through which they project, and they are held inwardly by aremovable casing O, which may be slipped over the flask and is providedwith slits a, through which the temporary spokes may be inserted andwhich will permit the casing to be removed at will. Centrally of theflask I locate a pattern D, approximating the shape of the hub of thewheel, which pattern may have'its upper end separable, as at d, and inthe walls of this pattern there'are formed a series of recessescorresponding to the positions of the inner ends of the spokes. Betweenthe hubpattern D and the ends .of the chills before described there arelocated a series of stubpatt'erns E, each one of which is centrallyperforated, the central perforation registering with the opening in theend of the chill and the opening in the hub-pattern correspondingthereto. Thus in assembling the parts a temporary spoke or retainer,such as F, is passed .tion of the spokes and fluid metal.

inwardly through each of the chills and through one of thestub-patterns'and into the central hub-pattern. It willbe noted thatwhen thus assembled the inclosing casing forces all of the chillsinwardly, and the stubpatterns, being located between the ends of thechills and-the central hub-pattern, will center the latter and' hold itfirmly in position. With the parts in this position sand, loam, or moldmaterial is rammed in around the parts and the flask filled, all in theordinary way. After-this has been accomplished the outer casing isremoved, the upper or flanged end of the hub-pattern also removed, andthen the temporary spokes or retainers are Withdrawn. The centralhub-pattern may then be removed by raising the flask if the taper isupwardly, as shown, or by lifting the pattern if the taper isdownwardly, after which the stub-patterns may be each removed byreaching in through the central cavity with a convenient hook or otherappliances, leaving the mold intact, and when. mounted upon a suitablebase is ready for the recep- Before the spokes and rim are applied andbefore the fluid metal is poured a series of hangers or spiders G arehung upon the edge of the flask in position for theiroutwardly-extending arms 9 to receive and support the rim of the wheel.The rim having been placed upon the spiders G, it is centered withrespect to the mold by means-of pins H, which may be inserted in any oneof the series of holes h in the arms 9, and it is centered vertically inaccordance with the width of the rim by means of blocks or wedges I,which may be placed beneath the rim at each of its points of support.Thus a narrow rim where no dish is given to the wheel should be raisedby the wedges somewhat higher than a wide rim in order that the spokesmay project properly from the hub. The spokes now have their inner endspassed into the molcteavity through the flaring openings in the chillsuntil their outer ends will pass inside of the rim, when said outer endsare inserted into the openings provided therefor in the rim and thespokes drawn outwardly until the usual shoulders on the spokes engagethe rim. WVhen in this position, each spoke will have its inner endprojecting into one of the stub-cavities (see Fig. 7) and in position tohave the metal cast about it, and it will be particularly observed thatin inserting the spokes no danger of injuring the mold is incurred,inasmuch as the mold ma terial holds the chill firmly in position, andthe openings in the inner ends of the latter efiectually guide andsupport the inner ends of the spokes out of contact 'with the sand,

loam, or mold material. v

The inner ends g? of the spiders G project over'the top of the flask andare adapted to hold the core or core-pieces S for the axle- I opening inplace. Such core piece or pieces are of the usual construction and areillustrated in Fig. '7 as being'held down by the overlying ends of thespider, and, if desired, wedges T or other means may be used to properlyposition them.

To prevent any possible escape of the molten metal through the aperturesin the ends of the chills and around the spokes held thereby, it isfound desirable to throw a handful of sand or loam into the said chillsfrom the outside after the spokes are properly positioned, thusefiectually closing the cracks around the spokes, which advantage, itwill be seen, follows from the formation of the chills with flaringopenings.

In the preferred construction, as before stated, the chills are dividedin half, and, as shown in Fig. 4, the-two halves are preferably providedwith interlocking portions,such as It, for holding themin their correctrelative positions; but it is obvious that this is not essential,inasmuch as other means may be resorted to for retaining the twosections of the chill in proper relative position-such, for. instance,as the wall of the opening through which the chills pass in theflask-and, in'fact, such chills may be of any approved shape, and I haveshown in Fig. 6 a modified form, where the chill M is substantiallycircular in crosssection and has within it a conical cavity; but in eachinstance the chill must be sectional in order to permit the removal ofthe completed .wheel after the hub has been cast around the inner endsof the spokes. has been done, it will be found that the chills may bedrawn out and taken off of the spokes and the flask slipped off, thespokes during such movement of the flask passing through the slots andout.

Rims of different diameters may be properly centered, as well as rims ofdifferent widths, and so, too, by using different sizes of hub and stubpatterns the size of the hubs may be correspondingly varied, adaptingthe apparatus for use in making many different sizes of wheels. So, too,in manipulating a number When the casting of flasks it is only essentialto have one casing, inasmuch as when one flask has been set up ready forcasting the casing is no longer in use there and may be taken to thenext flask and put into commission for holding the chills in that flask,and so on.

Having thus described my invention and in what manner the same is to beperformed, I declare that what I claim as new, and desire to secure byLetters Patent, is

1. In an apparatus for forming metallic wheels the combination with aflask having slits extending inwardly from the edge for the insertionand removal of the wheel-spokes, of a series of radially-arranged chillsmounted 'in said slits and having openings at their inner ends for thewheel-spokes; substantially as described.

2. In an apparatus for forming metallic wheels the combination with aflask having a series of openings in its side wall and slits extendingfrom said openings to the edge, of the flask, of a series of taperingchills mounted in said openings and converging toward the center of theflask; substantially as described.

3. In an apparatus for forming metallic wheels the combination with aflask having openings in its side wall and slits extending from saidopenings to the edge of the flask, of a series of sectional chillsmounted in said openings and having apertures at their inner ends forthepassage of the spokes; substantially as described.

4. In an apparatus for forming metallic wheels the combination with aflask having a series or slits therein extending to the edge for theadmission and escape of the wheelspokes, of a series of sectionalconverging chills having apertures at their inner ends for the admissionof the spokes; substantially as described.

5. In an apparatus for forming metallic Wheels the combination with aflask having a series of apertures in its side walls and slits extendingfrom said apertures to the edge of the flask, of a series of sectionalconverging chills mounted in said apertures, the sections of said chillshaving interlocking projections; substantially as described.

6. In an apparatus, for forming metallic wheels, the combination with aflask having apertures and slits connecting said apertures with one edgeof the flask and converging chills mounted in said apertures and in turnhaving apertures for the admission of the spokes, of a series of spidershaving outwardlyextending arms for supporting the wheel-rim with whichthe spokes cooperate; substantially as described.

7. In an apparatus for forming metallic wheels the combination with aflask having openings in its wall of a series. of chills converginginwardly from said openings and having outwardly-flaring openings withinthem for the admission of the spokes; substantially as described.

8. In an apparatus for forming metallic wheels the combination with aflask havinga series of slots extending out to the edge for the escapeof the wheel-spokes, a series of inwardly-converging chills havingapertures for the passage of the spokes, a central hub-pattern and aseries of independent stub-patterns for bridging spaces between thehub-pattern and inner ends of the chills; substantially as described.

9. In an apparatus for forming metallic wheels the combination with aflask, of a central hub-pattern, a series of converging chills andstub-patterns bridging the spaces between the hub-pattern and inner endsof the chills, said-chill, stub-patterns and hub-pattern havingapertures in alinement with each other and temporary spokes orretainers'for holding said parts in their adjusted positions;substantially as described.

10. In an apparatus for forming metallic wheels the combination with'aflask having slits in its wall extending out to one edge for the escapeof the spokes, of spiders mounted on said flask and havingoutwardly-extending arms for supporting the wheel-rim andinwardly-extending arms for retaining the central core; substantially asdescribed.

CLEMENT BUSH.

Witnesses: 7

FRANK M. BISHOP, LAWRENCE E. EMMONS, Jr.

